Update work state on production waiting

Also a work with cycle should not be set back to request.

issue11859
review415881003
(grafted from 2f418044fe4ea5808b4cd3d9bf14d492292ada50)

--HG--
branch : 6.0

production.py

@@ -101,6 +101,7 @@ class Production(metaclass=PoolMeta):
         for production in draft_productions:
             works.extend(production.get_works(work_center_picker))
         Work.save(works)
+        Work.set_state([w for p in productions for w in p.works])
 
     def get_works(self, work_center_picker):
         if not self.routing:

work.py

@@ -214,7 +214,7 @@ class Work(sequence_ordered(), ModelSQL, ModelView):
 
     @property
     def _state(self):
-        if self.production.state == 'waiting':
+        if self.production.state == 'waiting' and not self.cycles:
             return 'request'
         elif self.production.state == 'done':
             return 'done'